The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 2021
Filed:
Jul. 21, 2020
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventors:
Junichi Iwata, Ibaraki, JP;
Takahiro Yoshida, Ibaraki, JP;
Yukio Otome, Ibaraki, JP;
Tomoaki Murakami, Ibaraki, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); B41J 2/045 (2006.01); B41J 2/15 (2006.01); H01L 41/338 (2013.01); B41J 2/16 (2006.01); H01L 41/09 (2006.01); H01L 41/312 (2013.01);
U.S. Cl.
CPC ...
B41J 2/14201 (2013.01); B41J 2/04541 (2013.01); B41J 2/04581 (2013.01); B41J 2/14274 (2013.01); B41J 2/15 (2013.01); B41J 2/1618 (2013.01); B41J 2/1623 (2013.01); B41J 2/1632 (2013.01); B41J 2002/14403 (2013.01); B41J 2202/12 (2013.01); B41J 2202/20 (2013.01); B41J 2202/21 (2013.01); H01L 41/0973 (2013.01); H01L 41/312 (2013.01); H01L 41/338 (2013.01);
Abstract
A liquid discharge head includes a nozzle to discharge a liquid, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber to supply the liquid to the individual chamber, and a discharge channel communicating with the individual chamber to discharge the liquid in the individual chamber. A fluid resistance of the supply channel is greater than a fluid resistance of the discharge channel.